The Problem of Unlisted Phone Numbers Can Be Partially Resolved

question 72

True/False

The problem of unlisted phone numbers can be partially resolved through the use of random digit dialing.

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Definitions:

Necessary

Something that is required or essential for a particular purpose, action, or outcome.

Harmful

Causing or capable of causing damage, injury, or negative effects to something or someone.

Debriefing

A process following a research study or mission where participants are given an explanation of the study's purpose and its results, and any necessary counseling.

Confounding

A situation in which the effects of two variables on a response cannot be distinguished from each other, potentially leading to erroneous conclusions in an experiment or study.